| commit | bb6939dcffd9cb2e6d98480e12ce5badf7b56189 | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Sat Apr 19 01:20:30 2008 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Sat Apr 19 01:20:30 2008 +0000 |
| tree | da88fc625134803c5d0f4350fc032b61997f9b1d | |
| parent | f4423b1e458e08e61e2978547ff631b442398f69 [diff] |
xchg which references a memory operand does not need to lock prefix. Atomicity is guaranteed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49946 91177308-0d34-0410-b5e6-96231b3b80d8